A solution to Potential DNS DDoS: named query (cache) ‘./NS/IN’ denied

During the last couple of weeks i have been seeing a lot of messages about denied cache queries on my DNS servers.

month day time server name named[6518]: client ip number#port number: query (cache) ‘./NS/IN’ denied

At first they looked quite innocent and I thought nothing much of them. But after a while the number of logged events grew faster and faster so it was time to do some investigation on google. After reading a few articles I came to the conclusion that my logs where trying to tell me that my DNS server where used as DNS DDoS deflectors. Continue reading “A solution to Potential DNS DDoS: named query (cache) ‘./NS/IN’ denied”

A simple Mac OS X maintenance shell script

I, like so many of my fellow Macintosh users want to keep my OS X installation well maintained. So i sat down and read a few man pages describing those nifty cli utilities that are included in OS X. Since OS X is a UNIX style operating system I decided to create a small shell script to perform the following maintenance tasks for me .

Repair Filesystem Permissions
Verify Disks
Run Periodic (cron) jobs
Update Prebindings
Verify Preference Files
Displa Cache size
Clear Cache

If you find the script interesting and want to use it on your mac you need to perform a few simple steps: Continue reading “A simple Mac OS X maintenance shell script”

1st post

Well, i finally decided to ditch iWeb, vi, notepad, Dream Weaver and all the other programs i have used in the past to edit my personal homepages.

To get a fresh start i got myself a shiny new domain. I am a newbie at anything that has to do with web logs so bare with me while i get this blog more functional and add more and more content over time.

/thorsten